【结 构 式】 |
【分子编号】50262 【品名】3-hydroxypropyl methanesulfonate 【CA登记号】 |
【 分 子 式 】C4H10O4S 【 分 子 量 】154.187 【元素组成】C 31.16% H 6.54% O 41.51% S 20.8% |
合成路线1
该中间体在本合成路线中的序号:(XXI)The desulfurization of (XXI) with H2O2 and CaCO3 gives the chiral allylpiperidine (XXII), which is epoxidized by oxidation with OsO4, reaction of Ts-OH and treatment with K2CO3 to yield the epoxide (XXIII). The condensation of (XXIII) with quinazolinone (XXIV) by means of KOH in methanol affords the substituted propanol (XXV), which is oxidized with DMP to provide the propanone derivative (XXVI). Finally, compound (XXVI) is deprotected by treatment with refluxing 6N HCl to give the target febrifugine.
【1】 Taniguchi, T.; Ofasawara, K.; A diastereocontrolled synthesis of (+)-febrifugine: A potent antimalarial piperidine alkaloid. Org Lett 2000, 2, 20, 3193. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(XXI) | 50262 | 3-hydroxypropyl methanesulfonate | C4H10O4S | 详情 | 详情 | |
(XXII) | 51264 | benzyl (2R,3S)-2-allyl-3-(benzyloxy)-1-piperidinecarboxylate | C23H27NO3 | 详情 | 详情 | |
(XXIII) | 51265 | benzyl (2R,3S)-3-(benzyloxy)-2-(2-oxiranylmethyl)-1-piperidinecarboxylate | C23H27NO4 | 详情 | 详情 | |
(XXIV) | 14634 | 4(3H)-quinazolinone | C8H6N2O | 详情 | 详情 | |
(XXV) | 51266 | benzyl (2R,3S)-3-(benzyloxy)-2-[2-hydroxy-3-[4-oxo-3(4H)-quinazolinyl]propyl]-1-piperidinecarboxylate | C31H33N3O5 | 详情 | 详情 | |
(XXVI) | 51267 | benzyl (2R,3S)-3-(benzyloxy)-2-[2-oxo-3-[4-oxo-3(4H)-quinazolinyl]propyl]-1-piperidinecarboxylate | C31H31N3O5 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VI)Conjugate addition of 4-tolylmagnesium bromide (II) to anhydroecgonine methyl ester (I) afforded regioselectively the 2-beta-carbomethoxy-3-beta-aryl tropane (III). Hydrolysis of the ester function of (III) in aqueous dioxan gave the corresponding acid (IV). Treatment of (IV) with POCl3 yielded the acid chloride (V), which was condensed with 1,3-propanediol monomesylate (VI), yielding ester (VII). Finally, nucleophilic displacement of the mesylate group of (VII) with tetrabutylammonium fluoride in refluxing THF afforded the title fluoropropyl ester.
【1】 Gu, X.-H.; et al.; Synthesis and biological evaluation of a series of novel N- or O-fluoroalkyl derivatives of tropane: Potential positron emission tomography (PET) imaging agents for the dopamine transporter. Bioorg Med Chem Lett 2001, 11, 23, 3049. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(I) | 21118 | methyl (1R,5S)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene-2-carboxylate | C10H15NO2 | 详情 | 详情 | |
(II) | 35657 | bromo(4-methylphenyl)magnesium | 4294-57-9 | C7H7BrMg | 详情 | 详情 |
(III) | 50267 | methyl (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylate | C17H23NO2 | 详情 | 详情 | |
(IV) | 50268 | (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylic acid | C16H21NO2 | 详情 | 详情 | |
(V) | 50269 | (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carbonyl chloride | C16H20ClNO | 详情 | 详情 | |
(VI) | 50262 | 3-hydroxypropyl methanesulfonate | C4H10O4S | 详情 | 详情 | |
(VII) | 50270 | 3-[(methylsulfonyl)oxy]propyl (1R,2S,3S,5S)-8-methyl-3-(4-methylphenyl)-8-azabicyclo[3.2.1]octane-2-carboxylate | C20H29NO5S | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号:(VII)Conjugate addition of 4-(trimethylsilyl)phenylmagnesium bromide (II) to anhydroecgonine methyl ester (I) afforded regioselectively the 2-beta-carbomethoxy-3-beta-aryl tropane (III). Iododesilylation of (III) using ICl or iodine in the presence of AgBF4 gave the iodophenyl derivative (IV). Hydrolysis of the ester function of (IV) in aqueous dioxan yielded the corresponding acid (V). Treatment of (V) with POCl3 provided the acid chloride (VI), which was condensed with 1,3-propanediol monomesylate (VII) to yield ester (VIII). Finally, nucleophilic displacement of the mesylate group of (VIII) with tetrabutylammonium fluoride in refluxing THF afforded the title fluoropropyl ester.
【1】 Gu, X.-H.; et al.; Synthesis and biological evaluation of a series of novel N- or O-fluoroalkyl derivatives of tropane: Potential positron emission tomography (PET) imaging agents for the dopamine transporter. Bioorg Med Chem Lett 2001, 11, 23, 3049. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(I) | 21118 | methyl (1R,5S)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene-2-carboxylate | C10H15NO2 | 详情 | 详情 | |
(II) | 50257 | bromo[4-(trimethylsilyl)phenyl]magnesium | C9H13BrMgSi | 详情 | 详情 | |
(III) | 50258 | methyl (1R,2S,3S,5S)-8-methyl-3-[4-(trimethylsilyl)phenyl]-8-azabicyclo[3.2.1]octane-2-carboxylate | C19H29NO2Si | 详情 | 详情 | |
(IV) | 50259 | methyl (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylate | C16H20INO2 | 详情 | 详情 | |
(V) | 50260 | (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylic acid | C15H18INO2 | 详情 | 详情 | |
(VI) | 50261 | (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carbonyl chloride | C15H17ClINO | 详情 | 详情 | |
(VII) | 50262 | 3-hydroxypropyl methanesulfonate | C4H10O4S | 详情 | 详情 | |
(VIII) | 50263 | 3-[(methylsulfonyl)oxy]propyl (1R,2S,3S,5S)-3-(4-iodophenyl)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylate | C19H26INO5S | 详情 | 详情 |